A weapon with a rifled and/or smooth barrel of various calibers. It may be a single shot or an automatic-type weapon designed for attachment to aircra ft, ships, tracked vehicles, and the like. It may consist of two more remotely-controlled grenade launchers, fire control devices, covers, grenade storage bins, and the like. The grenade usually is the projectile component of a cartridge. Excludes LAUNCHER, GRENADE and LAUNCHER, GRENADE, RIFLE.

A cylindrical piece which moves or reciprocates under force in a CYLINDER ASSEMBLY, REACTION. It is usually a single item, but may have facilities for attachment to an operating rod, Excludes threaded end types with an integral operating rod for, which see ROD ASSEMBLY, OPERATING, GUN.

A cylindrical piece which moves or reciprocates under force in a CYLINDER ASSEMBLY, REACTION. It is usually a single item, but may have facilities for attachment to an operating rod, Excludes threaded end types with an integral operating rod for, which see ROD ASSEMBLY, OPERATING, GUN.

A weapon with a rifled and/or smooth barrel of various calibers. It may be a single shot or an automatic-type weapon designed for attachment to aircra ft, ships, tracked vehicles, and the like. It may consist of two more remotely-controlled grenade launchers, fire control devices, covers, grenade storage bins, and the like. The grenade usually is the projectile component of a cartridge. Excludes LAUNCHER, GRENADE and LAUNCHER, GRENADE, RIFLE.

A weapon with a rifled and/or smooth barrel of various calibers. It may be a single shot or an automatic-type weapon designed for attachment to aircra ft, ships, tracked vehicles, and the like. It may consist of two more remotely-controlled grenade launchers, fire control devices, covers, grenade storage bins, and the like. The grenade usually is the projectile component of a cartridge. Excludes LAUNCHER, GRENADE and LAUNCHER, GRENADE, RIFLE.